Question

_______he didn't attend the meeting. A.to my surprise B.what surprised me most C.it was surprised

_______he didn't attend the meeting.
A.to my surprise B.what surprised me most C.it was surprised that D.it was surprising that
He kept putting his dream to the test even though it meant_____with uncertainty and of failure.
A.living B.to live C.to be living D.having been lived
The___boy was last seen_____near the west lake.
A.missing; playing B.missing ;play C.missed ;played D.missed ;to play 请 详细解释一下

Answer 1

to my surprise在句中作状语。但是中间要加逗号。如果选B还应加上is that 选C就要加that,而且C应该是it was surprising ，因此D正确，it作形式主语
A living mean doing 意味着。。。
第三个也选A 丢失了的不见了的常用missing或者lost 。see sb doing看见某人在做某事，如果用see sb do sth变被动时要加to,所以B不对

Answer 2

D----it形式主语。that从句实际主语。这事情令人惊讶用surprising
A---mean doing 意味着，就是的意思
A----丢失missing是正确的。see sb playing也正确

Answer 3

C 固定句型：it was surprised that..
A mean doing sth.
A miss 也有错过的意思，但在这里是指丢失的意思，所以用missing . 看到某人正在做某事是see sb. doing sth.

Answer 4

D
A
A